Finding the Third Proportional to 2,613.50 and 5,407

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.50 : 5,407 = 5,407 : x
2. Step 2: Convert to fraction form
   2,613.50/5,407 = 5,407/x
3. Step 3: Cross multiply
   2,613.50x = 5,407 × 5,407
4. Step 4: Simplify right side
   2,613.50x = 29,235,649
5. Step 5: Solve for x
   x = 29,235,649/2,613.50
6. Step 6: Final answer
   x = 11,186.40